fix Sidebar

Author: C-K-Loan

docs/_data/navigation.yml

@@ -355,8 +355,6 @@ jsl:
         url:    /docs/en/jsl/haystack-utils
       - title:  Utilities for Langchain
         url:    /docs/en/jsl/langchain-utils
-      - title:  Utilities for Docker
-        url:    /docs/en/jsl/docker-utils
       - title:  Release Testing Utilities
         url:    /docs/en/jsl/testing-utils
       - title:  Module Structure